Cultivator



(No Model.)

'J. W. KRAU-S.

GULTIVATOR.

No. 449,642. Patented Mar. 31, 1891.

' YI..IITIT llllllllllllllllllllllllm.. I*lllllllllIllllllllllllllilllillllllllllllllllllllllllll "Q"!lillllllllllllllllllilll v UNITED STATES PATENT OFFICE.

JACOB \V. KRAUS, OF STERLING, ASSIGNOR TO THE AKRON TOOL COMPANY,

' OF AKRON, OHIO.

CU LTIVATO R.

SPECIFICATION forming part of Letters Patent No. 449,642, dated March31, 1891.

Application filed December 18, 1888. Serial No. 293,955. (No model.)

To all whom it may concern.-

Be it known that I, JACOB \V. KRAUS, a citizen of the United States ofAmerica, residing at Sterling, in the county of \Vayne and State ofOhio, have invented certain new and useful Improvements in Cultivators,of which the following is a specification, reference being had thereinto the accompanying drawings.

This invention pertains to certain new and useful improvements incultivators, being designed more particularly as an improvement on thecultivator shown and described and claimed in Patent Nof-JSSQOO, grantedto me August 21, 1888.

The invention comprises the details of construction, combination, andarrangement of parts, substantially as hereinafter fully set forth, andparticularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a broken perspective view ofmy improvement, viewing it from the rear; and Fig. 2, a similar detailedview thereof enlarged.

Inasmuch as my present invention relates only to the mechanism forshifting the cultivator beams and shovels in connection with themovement of the wheel-axles and the mechanism for keeping an evenpressure on all the drag-bars, I-will only describe those parts of mycultivator, the same being sufficient to a clear and properunderstanding thereof. I

Referring to the drawings, A designates the tongue, and a a the sidebars, of the cultivator-frame.

B Bare two short stub-axles suitably mounted in place, and to the innerends of these stub-axles are connected the outer ends of divergentrods 1) b, the inner ends of which are pivotallysecured to an L-shapedlever or bar b pivoted to the under side of tongue A.

Two depending bars O O are each loosely secured to the forward end of anapproximately V-shaped bar 0', secured at its rear end upon one end of acoiled spring-rod O to the other end of which latter part 0 is secured abar similar to O, (not shown,) said rod O being pivotally mounted at itscenter to a cross-beam of the frame, as at B. Two parallel arms (I O arepivotally secured at their front ends to bar 0 and at their rear endsthey are rigidly connected to. a transverse rod 0*, loosely mounted inthe side bars of the carrying-frame. A lever C is rigidl; secured to therod 0 and is designed to en gage a toothed rack 0, attached to the sidebar (I.

The lower ends of bars O O are seen red to the drag-bars O at d, and tothese bars O are pivotally secured the outer ends of two bars D D,pivoted to each other at d.

E is a connecting-bar secured at one end to the rear end of the L-shapedlever or bar b and at its other end the same is held by a loop a to thepivotal point of the bars D D.

From the foregoing description it will be seen that the turning of thestub-axles on their'pivotal posts cl (indicated in Fig. 2 will throughthe agency of the rods 1') 1) effect the turning of the L-shaped lever,and by means of the connecting-bar E' and the bars D D cause thedrag-bars to move in the same direction as the wheels of the cultivator.By this means the cultivator-shovels are always kept parallel and causedto move in the same line with the wheels. It will also be seen that bymoving the lever 0 forward it will cause the lowering of the forwardends ofthe parallel bars 0 and the V-shaped bar O, eifect- 8o ing thelowering of the drag-bars. If the pressure on one set of drag-bars istoo great, the forward ends of bars 0 and C will be raised, causing thelowering of the rear end of said bar 0 and that end of the coiled rod Oto which it is connected, and consequently effect the raising of theother end of said rod, thus keeping both sets of drag-bars at same depthand pressure at all times.

I claim as my invention 1. The combination, with the frame and thestub-axles, of the L-shaped lever or bar, the divergent rods Z) Z), thebars D D, the depending bars 0, and the drag-bars O substantially asdescribed.

2. As an improvement in cultivators, the

coiled-spring rod secured at its center to the frame, the V-shaped barssecured at their rear ends to the ends of said rod, the parallel linksor arms, the depending bars 0 O, and the d ragbars, substantially asdescribed.

The combination, with the frame, of the coi1-springrod, the transverserod C", the parallel arms 0", secured thereto, the bars 0 C thedragdvars, the lever, and the rack-bar, sub

stantially as set forth. :0

In testimony whereof I al'lix my signalu re in presence of twowitnesses.

JACOB \V. KRAUS. 'itnesses:

TARDEN \VHEELER, \V. H. LEE.

